Earthquake with magnitude of Md 2.3 on date 08-03-1987 and time 13:51:11 (UTC) in region 1 km N Casola in Lunigiana (MS)

A magnitude Md 2.3 earthquake occured in region: 1 km N Casola in Lunigiana (MS), on

  • 08-03-1987 13:51:11 (UTC)
  • 08-03-1987 14:51:11 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.2100, 10.1740 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Casola in Lunigiana MS 1 988 988
Fivizzano MS 5 7925 8913
Minucciano LU 5 2102 11015
Comano MS 10 714 11729
Sillano Giuncugnano LU 10 1085 12814
Piazza al Serchio LU 11 2367 15181
Licciana Nardi MS 12 4949 20130
Vagli Sotto LU 14 939 21069
Camporgiano LU 14 2176 23245
San Romano in Garfagnana LU 15 1410 24655
Fosdinovo MS 15 4883 29538
Careggine LU 16 564 30102
Carrara MS 16 63133 93235
Aulla MS 16 11263 104498
Ortonovo SP 17 8277 112775
Castelnuovo Magra SP 17 8415 121190
Tresana MS 18 2044 123234
Podenzana MS 19 2180 125414
Bagnone MS 19 1887 127301
Villa Collemandina LU 19 1334 128635
Massa MS 19 69479 198114
Villafranca in Lunigiana MS 20 4770 202884

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km NE of Carrara (63133 inhabitants)
19 Km N of Massa (69479 inhabitants)
30 Km E of La Spezia (93959 inhabitants)
39 Km N of Viareggio (62467 inhabitants)
48 Km NW of Lucca (89046 inhabitants)
58 Km NW of Pisa (89158 inhabitants)
65 Km SW of Reggio nell'Emilia (171345 inhabitants)
67 Km W of Pistoia (90315 inhabitants)
67 Km S of Parma (192836 inhabitants)
74 Km N of Livorno (159219 inhabitants)
77 Km SW of Modena (184973 inhabitants)
82 Km W of Prato (191150 inhabitants)
85 Km SW of Carpi (70699 inhabitants)
95 Km NW of Scandicci (50609 inhabitants)
98 Km W of Bologna (386663 inhabitants)
100 Km W of Firenze (382808 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
Md 2.3 1987-03-08
13:51:11
44.21 10.174 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 42529
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-03-08 13:51:11 ± 0.305
Latitude 44.2100 ± 0.0303
Longitude 10.1740 ± 0.0346
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 42529

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 4349.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 158
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.00300
Epicentral distance of station farthest from the epicenter (degree) 0.01263
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 42529
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:42:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.FIN.Z. 1987-03-08T13:51:55.00 10.0 undecidable manual SN 270 1.3986 -0.2 0.7
--.CO9.Z. 1987-03-08T13:51:36.50 10.0 undecidable manual SG 317 0.7548 -1.06 0.4
--.FIN.Z. 1987-03-08T13:51:35.90 10.0 undecidable manual PN 270 1.3986 -0.72 1.1
--.PS9.Z. 1987-03-08T13:51:30.50 10.0 undecidable manual SG 152 0.5439 -0.29 0.9
--.CO9.Z. 1987-03-08T13:51:27.50 10.0 undecidable manual PG 317 0.7548 1.06 1
--.PS9.Z. 1987-03-08T13:51:23.50 10.0 undecidable manual PG 152 0.5439 0.97 1.2
--.BDI.Z. 1987-03-08T13:51:23.00 10.0 undecidable manual SG 116 0.333 -0.99 0.4
--.BDI.Z. 1987-03-08T13:51:18.50 10.0 undecidable manual PG 116 0.333 -0.11 2.4
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download